Kahn, H. (1977). The Next 200 Years: A Scenario for America and the World. London: Associated Business Programmes.
Čikaški stil citiranjaKahn, Herman. The Next 200 Years: A Scenario for America and the World. London: Associated Business Programmes, 1977.
MLA način citiranjaKahn, Herman. The Next 200 Years: A Scenario for America and the World. London: Associated Business Programmes, 1977.
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